Enhanced Protection: High chemical and abrasion resistance specifically formulated for dirty water environments
Rigid Reliability: Heavy duty construction ensures maximum structural integrity under high load conditions
Ductile Iron Flanged Bellmouth | PN16 Wastewater
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Fully compliant, heavy duty PN16 ductile iron flanged bellmouth engineered specifically for wastewater management, sewage disposal, and industrial effluent sumps.
Manufactured to strict EN 598 and ISO 2531 standards, each fitting features a robust, high build fusion bonded red epoxy coating inside and out to safeguard against chemical aggression and ensure a maintenance free, abrasion resistant pipeline lifespan.
Enhanced Protection: High chemical and abrasion resistance specifically formulated for dirty water environments
Rigid Reliability: Heavy duty construction ensures maximum structural integrity under high load conditions
Also available flanged bellmouth for potable water.
Reliable Strength
When constructing or modifying wastewater networks, fluid dynamics at intake points are essential. Our ductile iron EN 598 flanged bellmouths feature a flared profile designed to significantly lower intake velocity, reduce hydraulic turbulence, and eliminate vortex formation at suction inlets while handling high pressure, thermal expansion, and ground movement without fracturing.
Unlike standard cast iron, ductile iron incorporates nodular graphite, giving the metal higher tensile strength and flexibility. This prevents catastrophic structural failures and ensures your critical infrastructure remains secure.
Chemical Resistance
To withstand continuous exposure to aggressive domestic sewage, industrial waste, and corrosive soil conditions, these fittings are treated with an advanced chemical resistant epoxy coating. This protective red layer provides:
An exceptional barrier against hydrogen sulphide (H2S) biogenic corrosion and acidic effluents
A smooth internal surface finish that minimises friction losses, prevents solids build-up, and reduces pumping costs
Total structural encapsulation to eliminate weak spots at critical pipeline joint interfaces
Industry Standard
Every fitting in this range is engineered to meet rigorous manufacturing benchmarks, ensuring trouble free drop-in replacement or seamless integration into existing public utility or private networks:
EN 598 Compliance: Guarantees suitability and safety for ductile iron pipelines and fittings carrying wastewater and sewage
ISO 2531 Standard: Validates the pressure capabilities, dimensions, and tolerances of the castings
ISO 7005-2 Flanges: Standardised PN16 bolt hole configurations for an aligned, leak-free seal alongside matching valves, pumps, and pipes
Information
| Material | Ductile Iron | High tensile strength |
| Application | Wastewater & Sewage Systems | Optimised for dirty water and effluent suction points |
| Pressure Rating | PN16 (16 Bar) | Engineered for high pressure systems |
| Manufacturing | ISO 2531 / EN 598 | Engineered for quality assurance |
| Flange Specification | ISO 7005-2 | PN16 for universal matching |
| Wall Thickness | Class K-12 / K-14 | Heavy wall construction for longevity |
| Coating | Fusion Bonded Epoxy (min. 250 Microns) | High resistance to chemical aggression and abrasion |
| Sizes Available | DN80 to DN300 | Larger sizes on request |
Documents
Specifications
Ductile Iron Brochure
Need a custom configuration or larger bore?
While we maintain good stock levels of standard DN80 to DN300 PN16 flanged fittings at our Suffolk warehouse, we regularly source specialised dimensions, non standard branch reductions, or alternative pressure ratings (such as PN10 or PN25) for major infrastructure projects.
If you cannot find the precise specification required for your project design, contact our technical sales team on 01284 658770 or email your schedule to us for a competitive quote.